Industrial / Commercial - Building Restoration, Renewal, and Spray Polyurethane Foam Insulation Specialists

Magnafied view of Closed Cell vs Open Cell Foam


The advantages of the closed-cell foam include its strength, higher R-value, and greater resistance to the leakage of air water vapor
Closed cell - foam has varying degrees of hardness, depending its density. Normal closed-cell insulation is between 2 and 3 pounds per cubic foot. It is strong enough to stand on without any major distortion. Most of the cells or bubbles in closed cell foam are not broken and resemble inflated balloons piled together in a compact configuration. This makes it strong or ridged because the bubbles are packed tightly enough to take a lot of pressure. All the cells are full of air and are densely packed together to make the insulation value of the foam as high as possible Open-cell The foam is soft like a cushion or the packaging material molded inside a plastic bag to fit a fragile object being shipped. The cell walls, or surfaces of the bubbles, are broken and air fills all of the spaces in the material. This makes the foam soft or week, as if it were make of broken balloons or soft toy rubber balls. The insulation value of this foam is related to the insulation value of the calm air inside the matrix of broken cells. The densities of open-cell foams are around to of a pound per cubic foot
   
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